I know this is an older thread but wanted to chime in.
Today we added a new toy to her cage, hung a new wall covering near her play stand, and she had raw coconut for the first time. You could tell she was really excited with all the extra attention today. It was even warm enough to open one window and air out the house a little.
Shortly after we opened the window, Arika started scenting again. If we didn't know better, we would have thought she opened a flower shop in her room, it was that fragrant.
She's done this many times before and it usually happens when we have music on, dancing with her, really giving her some extra attention that her scent will come alive.
The open window and fresh air seemed to be the final trigger.
Our girl has a lovely natural perfume
Thanks
Kelly, Karl, and Arika (the flower girl)